North Carolina Building Contractor License Practice Exam

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What is the minimum clearance required between wood siding and earth on the exterior of a building?

2 inches
4 inches
6 inches
12 inches

The correct answer is: 6 inches

The minimum clearance required between wood siding and earth on the exterior of a building is established to help prevent moisture-related issues and wood deterioration that can arise from direct contact with the soil. A clearance of 6 inches is necessary to ensure that the bottom edge of the wood siding remains elevated above the ground. This distance minimizes the potential for water splash-back onto the siding and reduces the risks of pests and fungal growth that thrive in moist conditions. The requirement emphasizes the importance of protecting wood materials to extend their lifespan and maintain the structural integrity of the building. By adhering to this guideline, builders can effectively safeguard against rot and other moisture-related damages, ensuring that the exterior remains dry and well-maintained.